definition of cleavage
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Cleavage (embryo) From Wikipedia, the free encyclopedia. In embryology, cleavage is the division of cells in the early embryo. The zygotes of many species undergo rapid cell cycles with no significant growth, producing a cluster of cells the same size as the original zygote.
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fracture fracture. 1  the breaking of a bone, cartilage, or the like, or the resulting condition. 2  the act of breaking; state of being broken. 3  a break, breach, or split. 4  the characteristic manner of breaking: a material of unpredictable fracture. 5  the characteristic appearance of a broken surface, as of a mineral.
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Definition of 'fission' Nuclear fission is the splitting of the nucleus of an atom to produce a large amount of energy or cause a large explosion. Synonyms: splitting, parting, breaking, division More Synonyms of fission.
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- Synthesis. Definition. noun, plural: syntheses. (1) (biochemistry) The production of an organic compound in a living thing, especially as aided by enzymes. (2) (chemistry) The act or process of forming a complex substance by combining or integrating two or more chemical entities, especially through a chemical reaction.
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Synthesis Synthesis. Definition. noun, plural: syntheses. (1) (biochemistry) The production of an organic compound in a living thing, especially as aided by enzymes. (2) (chemistry) The act or process of forming a complex substance by combining or integrating two or more chemical entities, especially through a chemical reaction. (3) (psychiatry) The integration of different elements of the personality, in opposition to analysis.
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cleavage noun. The definition of cleavage is the act of breaking or dividing something into two, or the space between a woman's breasts when they are pushed together.
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What is cleavage? Best Answer: here are some...meaning: Cleavage in general refers to a division or separation of form. Its usage is heavily dependent on cultural context, where it may refer to: Cleavage (crystal), in mineralogy and materials science, is a process of splitting a single crystal. Cleavage (geology), Foliation perpendicular to stress as a result of ductile deformation. e.g. shales (shists) Cleavage (embryo), in embryology, is the division of cells in the early embryo. Cleavage (fiber), in optical fibers.
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cleavage These surfaces are parallel to the faces of the molecular crystals that make up the minerals. A mineral that exhibits cleavage breaks into smooth pieces with the same pattern of parallel surfaces regardless of how many times it is broken.
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- Mineral Cleavage & Fracture . Cleavage and fracture are descriptions of how a mineral breaks into pieces. Cleavage. Cleavage describes how a mineral breaks into flat surfaces (usually one, two, three or four surfaces). Cleavage is determined by the crystal structure of the mineral. Common Cleavage Descriptions. Cubic . When a mineral breaks in three directions and the cleavage planes form right angles (90 degrees to each other). Results in pieces in the shape of a cube.
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FRACTURE break - breaking of hard tissue such as bone; it was a nasty fracture; the break seems to have been caused by a fall. fracture. harm, hurt, injury, trauma - any physical damage to the body caused by violence or accident or fracture etc. comminuted fracture - fracture in which the bone is splintered or crushed.
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Cleavage (embryo) Cleavage (embryo) In embryology, cleavage is the division of cells in the early embryo. The zygotes of many species undergo rapid cell cycles with no significant growth, producing a cluster of cells the same size as the original zygote. The different cells derived from cleavage are called blastomeres and form a compact mass called the morula.
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Cleavage and Fracture What is the difference between fracture and cleavage? Cleavage and fracture differ in that cleavage is the break of a crystal face where a new face (resulting in a smooth plane) is formed, whereas fracture is the chipping shape of a mineral. All minerals exhibit a fracture. If a mineral with cleavage is chipped a certain way, it will fracture rather than cleave.
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crack The definition of crack is a sudden, sharp breaking sound or a break in something. 1  An example of crack is the sound of a bone breaking. 2  An example of crack is a split in the ground after an earthquake.
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- The definition of cleavage is the act of breaking or dividing something into two, or the space between a woman's breasts when they are pushed together. 1  An example of cleavage is the separation of oil from olives.
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- The definition of a schism is a split of a group into different sections as a result of a difference in beliefs. When members of a church congregation disagree and divide into two separate churches based on their different beliefs, this is an example of a schism.
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Definitions &Translations In cell biology, the cleavage furrow is the indentation of the cell's surface that begins the progression of cleavage, by which animal and some algal cells undergo cytokinesis, the final splitting of the membrane, in the process of cell division.
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GeoMan's Mineral ID Tests Cleavage is controlled by the internal crystalline order of the mineral. A mineral can have 1, 2, 3, 4, or 6 planes of cleavage. If more than one (1) plane is present, it is important to note the angles between the cleavages. Cleavage can be obscured, but is diagnostic when present.
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break Medical Definition of break. 1  1a: an act or action of breaking : fractureb: the act of opening a gap in an electrical circuit. 2  2a: a condition produced by breaking the break in her legb: a gap in an otherwise continuous electric circuit.
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cleavage 3. the area between a woman's breasts, esp. when revealed by a low-cut neckline. 4. the tendency of crystals, certain minerals, rocks, etc., to break in preferred directions yielding smooth surfaces (cleav′age planes`). 5. the breaking down of a molecule or compound into simpler structures.
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- The normal breathing rate is between 12 and 18 breaths per minute. Many factors affect a person's breathing. You must learn to test for breaths per minute and spot the reasons or causes behind slow or fast breathing.
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What determines whether a mineral will cleave or fracture? But the property of cleavage, if present, can offer important information about the symmetry and inner structure of a crystal. The quality of a mineral's cleavage refers to both the ease with which the mineral cleaves and to the character of the exposed cleavage surface-plane.
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Cleavage (embryo) In embryology, cleavage is the division of cells in the early embryo. The zygotes of many species undergo rapid cell cycles with no significant growth, producing a cluster of cells the same size as the original zygote.he embryo forms a disc of cells, called a blastodisc, on top of the yolk. Discoidal cleavage is commonly found in monotremes, birds, reptiles, and fish that have telolecithal egg cells (egg cells with the yolk concentrated at one end).
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- In heterolytic cleavage, or heterolysis, the bond breaks in such a fashion that the originally-shared pair of electrons remain with one of the fragments.This process is also known as heterolytic, or ionic fission.The term  bond dissociation energy  refers to the amount of energy required to cleave a bond.n heterolytic cleavage, or heterolysis, the bond breaks in such a fashion that the originally-shared pair of electrons remain with one of the fragments.
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- When you describe cleavages you will need to include both the number of cleavage directions and the angles between those cleavage directions. Examples of different types of cleavage follow. gypsum and biotite. 1) When a mineral has only one direction of cleavage it often occurs as flat plates or sheets. feldspar. 1) The two directions are parallel to the base of the specimen and vertical, such as the plane running along the left side.
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Cleavage of Minerals Cleavage of Minerals. the ability of most minerals to break in certain directions yielding plane surfaces. Cleavage is a property related to characteristics of the mineral’s crystal structure.The cleavage planes are parallel to the lattice planes most densely packed with atoms, that is, planes with the greatest reticular density; the binding force between these planes is minimal.leavage of Minerals. the ability of most minerals to break in certain directions yielding plane surfaces. Cleavage is a property related to characteristics of the mineral’s crystal structure.
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- Cleavage • Breakage of a mineral along a flat plane of weakness. • How To Describe Cleavage: • If you see only 1 set of parallel planes... – Denoted '1 direction of cleavage' (mica was used as an example in class). • If you see only 2 sets of parallel planes, you must give the int ersection angle of the two planes.